series with empty entrys

Hi I have a series (double) with the demension of 61x1. I want to enlarge it to 63x1 with the last two values to be empty. How can I do this? Many thanks

Answer 1

[Azzi Abdelmalek]

a={1;2;3}
a(end+1:end+2)={[]}

[Linden]

Thanks Azzi. But this would not go with my series because the series is in double.

Answer 2

[Jos (10584)]

Each element in a double array has to be set to something. It cannot be empty.

You can use NaN (or maybe also zero) as a place-holder to make the array having a particular size

A = 1:3
B = 10:10:50
  % Now, I want A to have two extra elements, because B has
  % 5 elements, and I want to add each element of A to the
  % corresponding element of B
A(4:5) = NaN
C = A + B

[Linden]

cool thanks a lot